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WILLIAM H. HAWLEY, 0 F UTICA, NE-W YCRK.

Letters .Patent No. 68,874, (lated Septemer 17, 1867.

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To ALL WHOM IT MAY coNcEnN:

Be it known that I, WILLIAM H. HAWLEY, of Utica, Oneida county, New York, have inventedl a new and useful Improvement in Elevating-Blocks; and -I do hereby declare that the following is a. full, clear, and exact description of the construction and operation of the same, reference being hadto the annexed drawing, which representen; front view of the invention, with the front side of the casing removed. Y

isthe track-rope; B and B are two traversing pulleys which run thereon; C is a stop for governing their travel on the track-rope; Cl is the arm or lever thereof; C2 is the point or arm for moving the other stop, F; C3 is a shoulder, against which the track-rope is pressed by the stop C; C4 is a cord to operate the stops; C5 and C are pulleys, around which the cord C4 runs; D is a pulley, over which the draught-rope E runs; F is a stopte govern the motion of the draught-1'ope; G and H are eyes in the casing. The 'frame or casing is formed of two sides cast together, with the eye G at the top and H at the right-hand corner. G serves to hang up the apparatus by when it is used, as it may be, as a single pulley, and to H may be attached the end of the draught-rope, and thus, with a single pulley between such eye and the pulley D, power maybe gained. The pulleys B and B are ordinary pulleys, and so arranged between the 'sides of the case, and in the -upper part thereof, that when placed on the track-rope the apparatus will hang plumb below. The pulleyD is hung in the same plane and centrally below B and B', so that the motion of both may be in the saine direction and the load always be directly under the centre of the track-rope. '.lhe stop C is. grooved and cross-furrowed where it touches the track-rope, and so hung that when pressed against the track-rope it will'press'the rope up against Vthe shoulder C on the casing. The stop F is grooved and furrowed in the same manner, and is pressed against the draught-rope by the stop C operating through its point or arm C2 and the weight of its arm C, or a spring may be used to press down on the front of F. Both stops are operated by thc cord C*, attached to the arm Cl and passed over the pulley C, or the cord may be attached to the case and around a pulley, C5, in the arm C1, before passing around C, as seen in the drawing. I

lhc mode of operation is as follows: The track-rope, after being :passed through the case, under the pulleys B and B', (which rope should be sufliciently stout, and correspond with' the grooves of the pulleys,) is suspended in the barn or other place where it is to bc used, at the proper height and in the direction the load is to be carried. The draught-rope is then passed through the casing, between the stop F and pulley D. The lower end of this rope is attached to the hay-forli or load to be raised, and the other end, after being passed over suitable pulleys, has the draught-horse or power attached to it. Dy drawing on the cord C, the stop C presses the track-rope against the shoulder C and holds the apparatus firmly to track-rope. At the same time the stop C, by means of its point or arm C2, raises the stop I from the draughtrope, and now, if the horse be Started, the load may be raised vertically as high as desired and the track-rope will permit. When so raised to the desired height, if the cord C4 is let go, the stop C falls back by the weight of its arm Cl and releases the apparatus from the track-rope, and at the saine instant the weight of the arm C1A presses down F on the draughtrope and against the pulley D, and holds it firmly there, and the'lond moves oil in the proper direction. The load may be discharged in the usual way, by pulling the dischargecord attached to the fork,V or thc apparatus may be stopped on the track and the load lowered to the ground by drawing on the cord 0*, when the lstop C will hold it to the rope,4 and at the same time causo the draught-rope to be released from the stop F, when, if the horse is backed up or turned about, the load will descend to the ground, or it may be arrested in its descent at any point by again slacking coi-d 0*. When the load has been discharged, the apparatus may be brought hack to the proper point by drawing on the cord I, which depresses the track-rope at the point where it is attached thereto, and if the stop C is detached, the apparatus will run back from its own gravity, when it may be arrested at any point by the stop C, as'described, and the draught-rope being relieved from the stop F,vas described, the fork will descend to be reloaded. I i

Having thus described my invention, what I claim therein as new, and desire to secure by Letters Patent, is

1. The arrangement of the pulleys B and B and D in the same plane, with the two first above the other, substantially as described. t t

2. The mode, substantially as herein described, of governing thc motion of the apparatus and thc draughtrope by' means of the stops C and F.

3. The'track-rope pulleys B and B and the stop C in combination, substantially as described, and for thc uses and purposes mentioned.

4. The draught-rope, stop F, and pulley D in combination, substantially as described, and for the uses and purposes mentioned.

IVM. H. HAWLEY.

Witnesses:

H. Hun'LnUM, JOHN G. Cnocxnn. 

